Answer:
A and C.
Step-by-step explanation:
We add the real part and the imaginary part separately.
Adding A and C will give us 10 - 3i:
-3 - 4i + 13 + i
= -3 + 13 - 4i + i
= 10 - 3i.
D. {3, √ 2, -√ 2}.
<span>The cubic factors- (x - 3)(x² - 2) = 0.</span>

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